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Tian CH, Liu XG, Xu CY, Huang JR, Fu JF, Wang GS, Zhang JY, Li GP, Yin XM, Feng HQ. Molecule characterization of chemosensory and metabolism-related genes in the proboscis of Athetis lepigone. Front Physiol 2023; 14:1287353. [PMID: 38187138 PMCID: PMC10766847 DOI: 10.3389/fphys.2023.1287353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/23/2023] [Indexed: 01/09/2024] Open
Abstract
Introduction: The moth species Athetis lepigone (Möschler) (Lepidoptera: Noctuidae), which has recently been identified as a pest of summer maize (Zea mays L.) in China, has demonstrated a rapid proliferation with in the Huang-Huai-Hai Plain region since its initial discovery in Hebei Province in 2005. It has become a prevalent pest of corn crops, and its ability to adapt quickly to its surroundings is currently being investigated. One of the key characteristics of its siphoning mouthparts is not only the feeding apparatus itself but also the chemosensory organs that enable the detection of chemical signals from the surrounding environment. However, there is a lack of comprehensive research on the genes responsible for chemosensory and metabolic mechanisms in the proboscises of male and female A. lepigone adults. Methods: In this study, we utilized transcriptome analysis to identify a total of fifty chemosensory genes from six distinct families, including 19 odorant-binding proteins (OBPs), 22 chemosensory proteins (CSPs), one co-receptor (Orco), six odorant receptors (ORs), four ionotropic receptors (IRs), and two sensory neuron membrane proteins (SNMPs) in the proboscis. Notably, seven OBPs, two CSPs, and one OR were discovered for the first time. Additionally, fourteen genes related to metabolism, including cytochrome P450 (CYPs) and carboxylesterases (CXEs), were also identified. Furthermore, a qualitative analysis was conducted on the relative transcript levels of eight related genes. The expression of 21 annotated chemosensory and metabolic genes was compared between A. lepigone adults and larvae using qRT-PCR, revealing tissue specificity. The majority of genes exhibited predominant expression in the antennae and proboscis during the adult stage, while showing slight expression in the combination of sixth-instar larval head oral appendages (maxilla, labium, and antenna) and pheromone gland-ovipositors of female adults. Results/discussion: Our study points to a new pest control strategies that these newly discovered genes have the potential to serve as targets for enhancing future pest control, including mating disruption and the use of food attractants. And it would be advantageous to ascertain the distribution of chemosensory gene expression and gain insights into the functionalities of these genes, thereby establishing a novel theoretical framework for the advancement of eco-friendly pesticides and efficient pest management strategies in the future.
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Affiliation(s)
- Cai-Hong Tian
- Henan Key Laboratory of Crop Pest Control, MOA Key Regional Crop Integrated Pest Management (IPM) Laboratory in Southern Part of Northern China, International Joint Research Laboratory for Crop Protection of Henan, Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Xiao-Guang Liu
- Henan International Laboratory for Green Pest Control, Henan Engineering Laboratory of Pest Biological Control, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Cun-Yi Xu
- Henan Key Laboratory of Crop Pest Control, MOA Key Regional Crop Integrated Pest Management (IPM) Laboratory in Southern Part of Northern China, International Joint Research Laboratory for Crop Protection of Henan, Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Jian-Rong Huang
- Henan Key Laboratory of Crop Pest Control, MOA Key Regional Crop Integrated Pest Management (IPM) Laboratory in Southern Part of Northern China, International Joint Research Laboratory for Crop Protection of Henan, Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Jun-Feng Fu
- Yuzhou Plant Protection and Quarantine Station, Yuzhou, China
| | - Gen-Song Wang
- Henan Key Laboratory of Crop Pest Control, MOA Key Regional Crop Integrated Pest Management (IPM) Laboratory in Southern Part of Northern China, International Joint Research Laboratory for Crop Protection of Henan, Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Jun-Yi Zhang
- Henan Key Laboratory of Crop Pest Control, MOA Key Regional Crop Integrated Pest Management (IPM) Laboratory in Southern Part of Northern China, International Joint Research Laboratory for Crop Protection of Henan, Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
- Henan International Laboratory for Green Pest Control, Henan Engineering Laboratory of Pest Biological Control, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Guo-Ping Li
- Henan Key Laboratory of Crop Pest Control, MOA Key Regional Crop Integrated Pest Management (IPM) Laboratory in Southern Part of Northern China, International Joint Research Laboratory for Crop Protection of Henan, Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Xin-Ming Yin
- Henan International Laboratory for Green Pest Control, Henan Engineering Laboratory of Pest Biological Control, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Hong-Qiang Feng
- Henan Key Laboratory of Crop Pest Control, MOA Key Regional Crop Integrated Pest Management (IPM) Laboratory in Southern Part of Northern China, International Joint Research Laboratory for Crop Protection of Henan, Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
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Chen YCD, Park SJ, Joseph RM, Ja WW, Dahanukar AA. Combinatorial Pharyngeal Taste Coding for Feeding Avoidance in Adult Drosophila. Cell Rep 2020; 29:961-973.e4. [PMID: 31644916 PMCID: PMC6860367 DOI: 10.1016/j.celrep.2019.09.036] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 08/18/2019] [Accepted: 09/12/2019] [Indexed: 01/05/2023] Open
Abstract
Taste drives appropriate food preference and intake. In Drosophila, taste neurons are housed in both external and internal organs, but the latter have been relatively underexplored. Here, we report that Poxn mutants with a minimal taste system of pharyngeal neurons can avoid many aversive tastants, including bitter compounds, acid, and salt, suggesting that pharyngeal taste is sufficient for rejecting intake of aversive compounds. Optogenetic activation of selected pharyngeal bitter neurons during feeding events elicits changes in feeding parameters that can suppress intake. Functional dissection experiments indicate that multiple classes of pharyngeal neurons are involved in achieving behavioral avoidance, by virtue of being inhibited or activated by aversive tastants. Tracing second-order pharyngeal circuits reveals two main relay centers for processing pharyngeal taste inputs. Together, our results suggest that the pharynx can control the ingestion of harmful compounds by integrating taste input from different classes of pharyngeal neurons. Chen et al. perform functional and behavioral experiments to study the roles of different subsets of pharyngeal neurons in governing food avoidance in flies. They find evidence that rejection of different categories of aversive compounds is dependent on distinct combinations of pharyngeal taste neurons.
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Affiliation(s)
- Yu-Chieh David Chen
- Interdepartmental Neuroscience Program, University of California, Riverside, CA 92521, USA
| | - Scarlet Jinhong Park
- Department of Neuroscience, The Scripps Research Institute, Jupiter, FL 33458, USA; Skaggs Graduate School, The Scripps Research Institute, Jupiter, FL 33458, USA
| | - Ryan Matthew Joseph
- Department of Molecular, Cell and Systems Biology, University of California, Riverside, CA 92521, USA
| | - William W Ja
- Department of Neuroscience, The Scripps Research Institute, Jupiter, FL 33458, USA; Skaggs Graduate School, The Scripps Research Institute, Jupiter, FL 33458, USA
| | - Anupama Arun Dahanukar
- Interdepartmental Neuroscience Program, University of California, Riverside, CA 92521, USA; Department of Molecular, Cell and Systems Biology, University of California, Riverside, CA 92521, USA.
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Mou W, Kao YT, Michard E, Simon AA, Li D, Wudick MM, Lizzio MA, Feijó JA, Chang C. Ethylene-independent signaling by the ethylene precursor ACC in Arabidopsis ovular pollen tube attraction. Nat Commun 2020; 11:4082. [PMID: 32796832 PMCID: PMC7429864 DOI: 10.1038/s41467-020-17819-9] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 07/20/2020] [Indexed: 11/09/2022] Open
Abstract
The phytohormone ethylene has numerous effects on plant growth and development. Its immediate precursor, 1-aminocyclopropane-1-carboxylic acid (ACC), is a non-proteinogenic amino acid produced by ACC SYNTHASE (ACS). ACC is often used to induce ethylene responses. Here, we demonstrate that ACC exhibits ethylene-independent signaling in Arabidopsis thaliana reproduction. By analyzing an acs octuple mutant with reduced seed set, we find that ACC signaling in ovular sporophytic tissue is involved in pollen tube attraction, and promotes secretion of the pollen tube chemoattractant LURE1.2. ACC activates Ca2+-containing ion currents via GLUTAMATE RECEPTOR-LIKE (GLR) channels in root protoplasts. In COS-7 cells expressing moss PpGLR1, ACC induces the highest cytosolic Ca2+ elevation compared to all twenty proteinogenic amino acids. In ovules, ACC stimulates transient Ca2+ elevation, and Ca2+ influx in octuple mutant ovules rescues LURE1.2 secretion. These findings uncover a novel ACC function and provide insights for unraveling new physiological implications of ACC in plants.
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Affiliation(s)
- Wangshu Mou
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, USA.,Division of Crop Biotechnics, Department of Biosystems, University of Leuven, Leuven, Belgium
| | - Yun-Ting Kao
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, USA
| | - Erwan Michard
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, USA
| | - Alexander A Simon
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, USA
| | - Dongdong Li
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, USA.,Division of Crop Biotechnics, Department of Biosystems, University of Leuven, Leuven, Belgium
| | - Michael M Wudick
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, USA.,Institute for Molecular Physiology, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Michael A Lizzio
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, USA
| | - José A Feijó
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, USA.
| | - Caren Chang
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, USA.
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